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Outside weather compensation control
Installation
& Operating
Instructions
THESE INSTRUCTIONS
TO BE RETAINED
BY USER
INSTRUCTIONS FOR EXTERNAL SENSOR
CONTENTS
• Instruction sheet
• External housing & sensor
• Fixing screws and wall plugs
INTRODUCTION
The Vokera external sensor can be connected to certain Vokera appliances to adjust the outlet flow temperature relative to the outside temperature. This is called thermo-regulation.
By adjusting certain parameters on the boiler or dedicated control, a unique thermoregulation curve can be set that allows the boiler to regulate the output flow temperature to suit the local climatic conditions.
INSTALLATION REQUIREMENTS
To enable the correct functioning of the sensor, the following installation requirements must be adhered to:
• The installation of the external sensor, and the subsequent re-programming of the appliance parameters, should only be carried out by suitably qualified personnel.
• The sensor should be mounted on a
North or Northwest-facing wall.
• The sensor must not be positioned in proximity to the appliance flue outlet or any other artificial source of heat.
• The connecting cable length between boiler and sensor should not exceed 50metres.
• All wiring between the external sensor and the appliance must conform to
BS6500, and sized from 0.5 to 1.0mm
2 .
• The external sensor should be mounted approximately 2-metres above ground level.
1. INSTALLATION OF SENSOR HOUSING
(fig’s. 1 & 2)
Remove the sensor housing from the packaging and detach the protective cap by rotating an 1/8 th turn counter-clockwise.
Using the housing as a guide, mark the position of the fixing holes on the chosen location for the sensor.
Drill two 5mm-diameter holes at the marked position of the sensor.
Using the screws and wall plugs provided, secure the sensor housing to the wall, ensuring the cable entry is facing downwards.
Casing of later model has been adapted but internal components remain unchanged.
2. WIRING CONNECTIONS
Isolate the appliance from the electrical supply, and remove the appliance casing and
PCB cover. Refer to the installation instructions for further details.
NOTE
Use the relevant cable entry points of the external sensor housing and the appliance.
Ensure that the cable is suitably supported and protected. Tighten the cable entry glands on completion.
Once the wiring connections have been completed, replace the PCB cover and appliance casing, and re-attach the protective cover on the external sensor housing.
Registered address:
Vokèra Ltd
Borderlake House
Unit 7 Riverside Industrial Estate
London Colney
Herts AL2 1HG [email protected]
www.vokera.co.uk
www.vokera.ie
Sales, General Enquires
T 0844 391 0999
F 0844 391 0998
Vokèra Ireland
West Court, Callan
Co Kilkenny
T 056 7755057
F 056 7755060
Vokèra Limited reserve the right to change specification without prior notice
Consumers statutory rights are not affected.
A Riello Group Company.
Company Reg No: 1047779
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